MESON Chess Problem Database

Problem Display
PID: 248606 (8/3pQ3/3P1p2/4N3/R1p1kp1N/2Kn3p/BppBqp2/1rr1R1n1 w - - 0 1)

Clark, Robert Winslow

British Chess Magazine, 1932

8/3pQ3/3P1p2/4N3/R1p1kp1N/2Kn3p/BppBqp2/1rr1R1n1

#2

9 + 14

SOLUTION

  • SOUND
  • Tries
    • 1.Sxc4+?
      • 1...Se5
        • 2.Sxb2#
        • 2.Sa3#
        • 2.Sa5#
        • 2.Sxe5#
        • 2.Sb6#
      • 1...Kd5!
    • 1.Sg4+?
      • 1...Se5
        • 2.Sxf6#
      • 1...Kd5!
    • 1.Sxd7+?
      • 1...Se5
        • 2.Sxf6#
      • 1...Kd5!
    • 1.Bxc4?
      • threat
        • 2.Sxd3#
      • 1...Sxe1
        • 2.Sd3#
        • 2.Sef3#
        • 2.Sg4#
        • 2.Sc6#
        • 2.Seg6#
        • 2.Sxd7#
        • 2.Sf7#
      • 1...Sxe5
        • 2.Ba2#
        • 2.Bb3#
        • 2.Bf7#
        • 2.Bg8#
      • 1...fxe5
        • 2.Qh7#
      • 1...Sf3
        • 2.Rxe2#
      • 1...Sb4
        • 2.Sd3#
        • 2.Sef3#
        • 2.Sg4#
        • 2.Sc6#
        • 2.Seg6#
        • 2.Sxd7#
        • 2.Sf7#
      • 1...Sc5!
    • 1.Qe6?
      • threat
        • 2.Rxc4#
      • 1...Sxe1
        • 2.Sxd7#
      • 1...Sf3
        • 2.Rxe2#
      • 1...Sb4
        • 2.Sxd7#
      • 1...dxe6!
  • Keys
    • 1.Kxc4!
      • threat
        • 2.Sxd3#
      • 1...Sxe1+
        • 2.Sd3#
      • 1...Sb4+
        • 2.Sd3#
      • 1...Sc5+
        • 2.Kxc5#
      • 1...Sxe5+
        • 2.Kc3#
      • 1...fxe5
        • 2.Qh7#
      • 1...Sf3
        • 2.Rxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK,XP(j)
      • Refutation
        • K(k);N_SPINQ(f),S_FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • S(h);P_SPINS(h)::S(G),XP(m)
      • Refutation
        • K(k);N_SPINQ(f),S_FLIGHT
    • Try
      • S(G);CHECK,XP(n)
      • Vars
        • S(h);P_SPINS(h)::S(G),XP(m)
      • Refutation
        • K(k);N_SPINQ(f),S_FLIGHT
    • Try
      • B(B);XP(j)
      • Threat
        • QAR(I)+S(G),XS(h)
      • Vars
        • P(m);N_GUARD,P_SPINP(m),SBLOCK,XS(G)::QAB(I)
        • S(c);N_GUARD::R(A),XQ(f)
      • Refutation
        • S(h);
    • Try
      • Q(I);
      • Threat
        • R(E),XP(j)
      • Vars
        • S(h);N_GUARD,N_SPINQ(f),XR(A)::QAR(I)+S(G),XP(n)
        • S(c);N_GUARD::R(A),XQ(f)
        • S(h);N_GUARD,N_SPINP(j)::QAR(I)+S(G),XP(n)
      • Refutation
        • P(n);XQ(I)
  • Actual
    • K(D);P-FLIGHT,XP(j)
    • Threat
      • QAR(I)+S(G),XS(h)
    • Vars
      • S(h);CHECK,N_SPINQ(f),XR(A)::QAR(I)+S(G)
      • S(h);CHECK::QAR(I)+S(G)
      • S(h);CHECK::R(E)+K(D),XS(h)
      • S(h);CHECK,N_GUARD,P_SPINS(h),XS(G)::R(E)+K(D)
      • P(m);N_GUARD,P_SPINP(m),SBLOCK,XS(G)::QAB(I)
      • S(c);N_GUARD::R(A),XQ(f)
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